Parvin, M. .; Mushtari, M.; Rahman, A. .; Akter, N. .; Islam, M. A. . Preparation of Some As-Triazines, Their Evaluation As Spectrophotometric Reagents and Determination of Trace Amount of Iron in Certain Food and Natural Samples. Dhaka Univ. J. Sci. 2023, 71, 111-116.